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#      Institut Federatif de Recherche 49
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from brainvisa.processes import *
import registration
name = 'Graph To Talairach converter'
roles = ('converter',)
userLevel=1

signature = Signature(
    'read', ReadDiskItem( 'Graph', 'Graph' ),
    'write', WriteDiskItem(
    'Transform Raw T1 MRI to Talairach-AC/PC-Anatomist',
    'Transformation matrix' ),
    )

def initialization( self ):
    self.linkParameters( 'write', 'read' )

def execution( self, context ):
    context.system( 'AimsGraphExtractTransformation', '-i',
                     self.read.fullPath(), '-o', self.write.fullPath() )
    trManager = registration.getTransformationManager()
    acpcReferential = trManager.referential( 
        'a2a820ac-a686-461e-bcf8-856400740a6c' ) # Talairach-AC/PC-Anatomist
    if acpcReferential is None:
        raise RuntimeError( 'Talairach-AC/PC-Anatomist not found - maybe an installation problem ?' )
    trManager.setNewTransformationInfo(
        self.write,
        source_referential = self.read,
        destination_referential = acpcReferential )